This phone has a lot of functons that is still being unlocked by programmers worldwide but unfortunately, as far as the ringtones go, u can only use the ones that are stored in the phone memory itself. Nothing much can be done about it even now. It's no big deal, you can store all your ringtones on the TF card and only need to copy the ringtones that u want to use to the phone memory which you already know, the phone itself is very limitted.